Synthesis, structure, and properties of the stabilized coordination chrome(II) complex with nitrilotris(methylenephosphonic) acid [CrII(H2O)3-μ-NH(CH2PO3H)3]

Synthesis, structure, and properties of the stabilized coordination chrome(II) complex with... The chrome(II) complex [CrII(H2O)3µNH(CH2PO3H)3] is synthesized and studied. The crystals are monoclinic, space group P21/c, Z = 4, a = 9.28230(10), b = 16.0778(2), c = 9.79790(10) Å, β = 116.081(2)° (CIF file CCDC 1045098). The chrome atom is coordinated at the vertices of the distorted octahedron by three atoms of the water molecules and three O atoms of two tridentate chelate-bridging ligands NH(CH2PO3H)3 (L = H4NTP2–). The compound is a linear polymer. The eight-membered cycle Cr–O–P–C–N–C–P–O is closed upon the coordination of ligand L by two oxygen atoms (O(1), O(6)). The O(5) atom is bound to the adjacent chrome atom. The stabilization of the oxidation state of Cr(II) is due to the delocalization of the electron density drawn aside from the metal atom in the PO3 groups. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Russian Journal of Coordination Chemistry Springer Journals

Synthesis, structure, and properties of the stabilized coordination chrome(II) complex with nitrilotris(methylenephosphonic) acid [CrII(H2O)3-μ-NH(CH2PO3H)3]

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Publisher
Springer Journals
Copyright
Copyright © 2015 by Pleiades Publishing, Ltd.
Subject
Chemistry; Physical Chemistry; Inorganic Chemistry
ISSN
1070-3284
eISSN
1608-3318
D.O.I.
10.1134/S1070328415100073
Publisher site
See Article on Publisher Site

Abstract

The chrome(II) complex [CrII(H2O)3µNH(CH2PO3H)3] is synthesized and studied. The crystals are monoclinic, space group P21/c, Z = 4, a = 9.28230(10), b = 16.0778(2), c = 9.79790(10) Å, β = 116.081(2)° (CIF file CCDC 1045098). The chrome atom is coordinated at the vertices of the distorted octahedron by three atoms of the water molecules and three O atoms of two tridentate chelate-bridging ligands NH(CH2PO3H)3 (L = H4NTP2–). The compound is a linear polymer. The eight-membered cycle Cr–O–P–C–N–C–P–O is closed upon the coordination of ligand L by two oxygen atoms (O(1), O(6)). The O(5) atom is bound to the adjacent chrome atom. The stabilization of the oxidation state of Cr(II) is due to the delocalization of the electron density drawn aside from the metal atom in the PO3 groups.

Journal

Russian Journal of Coordination ChemistrySpringer Journals

Published: Oct 11, 2015

References

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